void UpdateChildrenCore(IEnumerable <DesignItem> items)
{
foreach (var item in items)
{
if (ModelTools.CanSelectComponent(item))
{
var node = OutlineNode.Create(item);
Children.Add(node);
}
else
{
var content = item.ContentProperty;
if (content != null)
{
if (content.IsCollection)
{
UpdateChildrenCore(content.CollectionElements);
}
else
{
if (content.Value != null)
{
UpdateChildrenCore(new[] { content.Value });
}
}
}
}
}
}
/// <summary>
/// Moves the Focus down the tree.
/// </summary>
internal void MoveFocusForward()
{
ISelectionService selection = _context.Services.Selection;
DesignItem item = selection.PrimarySelection;
selection.SetSelectedComponents(selection.SelectedItems, SelectionTypes.Remove);
if (item != GetLastElement())
{
if (item.ContentProperty != null)
{
if (item.ContentProperty.IsCollection)
{
if (item.ContentProperty.CollectionElements.Count != 0)
{
if (ModelTools.CanSelectComponent(item.ContentProperty.CollectionElements.First()))
{
selection.SetSelectedComponents(new DesignItem[] { item.ContentProperty.CollectionElements.First() }, SelectionTypes.Primary);
}
else
{
SelectNextInPeers(item);
}
}
else
{
SelectNextInPeers(item);
}
}
else if (item.ContentProperty.Value != null)
{
if (ModelTools.CanSelectComponent(item.ContentProperty.Value))
{
selection.SetSelectedComponents(new DesignItem[] { item.ContentProperty.Value }, SelectionTypes.Primary);
}
else
{
SelectNextInPeers(item);
}
}
else
{
SelectNextInPeers(item);
}
}
else
{
SelectNextInPeers(item);
}
}
else
{
//if the element was last element move focus to the root element to keep a focus cycle.
selection.SetSelectedComponents(new DesignItem[] { _context.RootItem }, SelectionTypes.Primary);
}
}
void UpdateChildrenCore(IEnumerable <DesignItem> items)
{
foreach (var item in items)
{
if (ModelTools.CanSelectComponent(item))
{
var node = OutlineNode.Create(item);
Children.Add(node);
}
}
}
bool UpdateChildrenCore(IEnumerable <DesignItem> items, int index = -1)
{
var retVal = false;
foreach (var item in items)
{
if (ModelTools.CanSelectComponent(item))
{
if (Children.All(x => x.DesignItem != item))
{
var node = OutlineNode.Create(item);
if (index > -1)
{
Children.Insert(index++, node);
retVal = true;
}
else
{
Children.Add(node);
retVal = true;
}
}
}
else
{
var content = item.ContentProperty;
if (content != null)
{
if (content.IsCollection)
{
UpdateChildrenCore(content.CollectionElements);
retVal = true;
}
else
{
if (content.Value != null)
{
UpdateChildrenCore(new[] { content.Value });
retVal = true;
}
}
}
}
}
return(retVal);
}
/// <summary>
/// Moves focus up-the-tree.
/// </summary>
internal void MoveFocusBack()
{
ISelectionService selection = _context.Services.Selection;
DesignItem item = selection.PrimarySelection;
if (item != _context.RootItem)
{
if (item.Parent != null && item.Parent.ContentProperty.IsCollection)
{
int index = item.Parent.ContentProperty.CollectionElements.IndexOf(item);
if (index != 0)
{
if (ModelTools.CanSelectComponent(item.Parent.ContentProperty.CollectionElements.ElementAt(index - 1)))
{
selection.SetSelectedComponents(new DesignItem[] { item.Parent.ContentProperty.CollectionElements.ElementAt(index - 1) }, SelectionTypes.Primary);
}
}
else
{
if (ModelTools.CanSelectComponent(item.Parent))
{
selection.SetSelectedComponents(new DesignItem[] { item.Parent }, SelectionTypes.Primary);
}
}
}
else
{
if (ModelTools.CanSelectComponent(item.Parent))
{
selection.SetSelectedComponents(new DesignItem[] { item.Parent }, SelectionTypes.Primary);
}
}
}
else
{
// if the element was root item move focus again to the last element.
selection.SetSelectedComponents(new DesignItem[] { GetLastElement() }, SelectionTypes.Primary);
}
}
/// <summary>
/// Gets the last element in the element hierarchy.
/// </summary>
private DesignItem GetLastElement()
{
DesignItem item = _context.RootItem;
while (item != null && item.ContentProperty != null)
{
if (item.ContentProperty.IsCollection)
{
if (item.ContentProperty.CollectionElements.Count != 0)
{
if (ModelTools.CanSelectComponent(item.ContentProperty.CollectionElements.Last()))
{
item = item.ContentProperty.CollectionElements.Last();
}
else
{
break;
}
}
else
{
break;
}
}
else
{
if (item.ContentProperty.Value != null)
{
item = item.ContentProperty.Value;
}
else
{
break;
}
}
}
return(item);
}